JPH0734137U - Wood floor material - Google Patents

Abstract

(57) [Summary] [Purpose] A floor material that is a direct-adhesive floor material that is easy to install, and fits well on uneven surfaces of the floor base, even though the wood part is thin. To do. [Structure] The opposite side surfaces of the wood part are notched, and a cushioning material with a relatively large elastic coefficient is attached in a strip shape along the side surface on the lower part of the rear surface on the side where the lower half part protrudes. A direct-adhesive flooring material that has a cushioning material that has the desired soundproofing performance. [Effect] Since the wood part, which is the sounding body, is thin, it has excellent soundproofing performance, is easy to install, and does not cause a step difference.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wooden flooring material to be attached to the floor of a reinforced concrete building.

[0002]

[Prior art]

 When a wooden floor material is applied to the floor base of a reinforced concrete structure, the floor base is usually a concrete slab, and the surface is not a perfectly flat surface and has irregularities. For this reason, if the wooden floor material is directly attached, it will not adhere sufficiently to the floor substrate. For this reason, a direct-adhesive floor material with a cushioning material attached to the back of the wooden floor material is usually used.

A floor having a cushioning material attached to the back surface sinks to some extent when furniture or the like is placed on the floor or a person walks after construction on the floor base. At the joint between adjacent floor materials, the load is not always equal, such as a large load being applied only to one floor material. In such a case, as a result of the floor material under the heavy load sinking largely, unevenness is likely to occur at the joint. Therefore, in the case of the conventional directly-bonded flooring material, the actual mold of the joint portion had to be actually processed so that no step difference would occur even if a large load was applied to only one flooring material.

[0004]

[Problems to be solved by the device]

 However, since the wooden floor material itself is a sounding body, the thicker the wooden portion, the lower the soundproofing performance. As the thickness of the wood part becomes thinner, not only the strength of the fruit decreases, but also it becomes difficult to fit the male fruit to the female fruit during the construction, which significantly reduces the construction efficiency. Therefore, the thickness of the wood part can only be thinned to some extent. Among the wood materials, even with relatively strong moku wood and plywood, if the thickness of the wood part is set to 9 mm or less and the actual part is applied to the joint part, the actual strength will decrease to the limit of practical use. Efficiency is also significantly reduced.

The present invention relates to a flooring material directly attached to a flooring material that does not reduce the construction efficiency even if the thickness of the wood part is reduced and does not cause unevenness.

[0006]

[Means for Solving the Problems]

 The present invention will be described below with reference to the drawings of the embodiments. FIG. 1 shows a cross section of a flooring material having a cutout on the side surface. That is, the side where the lower half of the floor wood part protrudes outside the upper half (hereinafter referred to as the A-type side) and the side where the lower half recedes inside the upper half (hereinafter referred to as the B-type side) are They face each other and form a joint. Further, a cushioning material (a) having a relatively large compression elastic coefficient is attached to the back surface of the A-type side surface, and a cushioning material (b) having a relatively small compression elastic coefficient is attached to the back surface of B.

FIG. 2 is a cross-sectional view showing a state in which this floor material is constructed. The floor material (2) is simply placed on the floor material (1) or is bonded to the floor material 1 with an adhesive. However, at the construction site, there is no known adhesive that can strongly bond the joint part of the floor material that is notched and can guarantee the long-term durability. It does not make much sense to assume that the flooring (2) is tightly bonded with an adhesive. Therefore, the present invention considers only the case where the floor material (2) is simply placed on the floor material (1).

When a large load is applied to the floor material (1) side in the vicinity of the joint, the cushioning material (a) on the back surface of A has a large compression elastic coefficient, and thus the floor material (1) slightly sinks. It's just too busy. If the floor material (2) is simply resting on the floor material (1), even if the floor material (1) slightly sinks, the floor material (2) is not affected at all. Only a slight step difference occurs between the material (1) and the floor material (2). Therefore, if the compressive elastic modulus of the cushioning material (a) of the floor material (1) is sufficiently large, the sinking of the floor material (1) is very small, and practically at the joint between the floor materials (1) and (2). There will be no major differences that could cause problems.

Next, when a large load is applied to the floor material (2) in the vicinity of the joint as well, if the floor material (1) does not exist under the floor material (2), the floor material (2) is buffered. Since the material (b) has a small compressive elastic modulus, it should largely sink. However, since the floor material (1) is located just below the joint, it only slightly sinks in contact with the floor material (1). Therefore, in this case as well, as in the case where a large load is applied only to the floor material (1), there is no step difference that poses a practical problem at the joint.

When the compressive elastic coefficients of the cushioning material (a) and the cushioning material (b) are substantially the same and their values are too large, they do not fit well with the uneven surface of the floor base during the flooring work. Does not adhere strongly to the floor base. Therefore, not only the flooring will peel off at a later date, but also the elasticity of the cushioning material will be small, and the soundproofing performance will have to be lowered.

If both the cushioning material (a) and the cushioning material (b) have relatively small compressive elastic moduli, the soundproofing performance is good. However, when a large load is applied only to the floor material (1), only the floor material (1) largely sinks, causing a large step difference at the joint between the floor materials (1) and (2), and walking. It is dangerous to trip over. Therefore, it is necessary to increase the compression elastic modulus of the cushioning material (a) and suppress the sinking of the flooring material (1) to a certain limit in order to prevent unevenness while maintaining soundproof performance. . However, if the compression elastic coefficient of the cushioning material (a) is increased, the soundproofing performance is deteriorated, and therefore the area must be kept as small as possible.

Therefore, in the present invention, as shown in FIG. 1, the purpose is to provide a cushioning material (a) having a relatively large compression elastic coefficient below the side surface of the (A) mold and below the side surface of the (B) mold. A cushioning material (b) having a small compression elastic coefficient required to achieve soundproof performance is attached. Appropriate ratios of the cushioning materials (a) and (b) to the floor material width are 5 to 25% and 95 to 75%, respectively. The cushioning material (a) is required only near the A-type side surface, and the compressive elastic coefficient is relatively large, and the cushioning effect is inferior to that of the cushioning material (b). This is because if the ratio of is too large, the soundproofing performance of the floor material deteriorates.

Thus, by sticking the above-mentioned plurality of floor materials to the floor base as shown in FIG. 2, it is possible to achieve the desired soundproofing performance and prevent the occurrence of step differences that are a practical obstacle. Moreover, since the joints are notched, it is possible to make the wood part, which is the sounding body, thinner than in the actual process, and improve the soundproofing performance.

Also in terms of construction, it is not necessary to fit the convex fruits of the adjacent flooring materials to the concave fruits unlike the actual fruits, so that even if the wood part is thin, it does not take time to perform the construction. Since the cushioning material (b) has a larger area than that of (a) and the soundproofing performance of the flooring material of the present invention is left and right, its compression elastic coefficient is different from that of the cushioning material widely used for soundproofing flooring material. A similar elastic modulus, ie 5 kg / cm ^{2 to} 20 kg / cm ^2, is suitable. However, as mentioned above, since the subsidence must be reduced near the (A) type side surface of the floor material (1), the compressive elastic modulus of the cushioning material (a) is 15 kg / cm ^{2 to} 50 kg. / Cm ² is appropriate.

The appropriate value of the compression elastic coefficient of the cushioning material (a) is calculated as follows. That is, when one foot of an adult weighing 60 kg is applied to the floor material (1), at a position very close to the joint, the total weight of the adult is almost equal to the pressure applied to the soles and toes (about 40 cm ² ), That is, it is assumed that a load of 1.5 kg / cm ² is applied. The cushioning material generally has a thickness of 2 to 7 mm in consideration of an appropriate cushioning performance when a load is applied and a sinking amount within a range that does not impair the feeling of walking. Since it is considered that the step difference that does not cause any practical problem is 0.2 mm or less, assuming that the cushioning material having a thickness of 2 to 7 mm receives a compressive strain of 0.2 mm when a load of 1.5 kg / cm ² is applied, its compression elastic modulus of the cushioning material, as described above, a ^{15kg / cm 2 ~50kg / cm 2} .

As the cushioning material used in the present invention, almost any sheet can be used as long as it is a resilient elastic sheet such as foamed resin, thick fiber such as nonwoven fabric, and foamed rubber. As the wood part of the floor material, there can be used those obtained by processing wood of muku into a plate shape, plywood, particle board, fiber board, LVL and the like, which are processed into a plate shape using wood as a main raw material. In the case of muku wood, plywood, and LVL, as long as the thickness is 9 mm or more, the actual processing has the necessary actual strength, so there is no need to make a gap as in the present invention.

However, since particleboard and fiberboard are inferior in strength and long-term durability to moisture and water compared to solid wood, plywood, and LVL, if the thickness is 15 mm or more, long-term use remains uneasy. Therefore, the present invention can also be applied to a particle board having a thickness of 15 mm or less or a floor material having a fiberboard as a wood part.

In the present invention, since the cushioning material is attached to the back surface, if the wood part is made too thin, the flexural modulus of elasticity of the entire floor material becomes too small, and distortion occurs in the part subjected to the concentrated load. Since it concentrates, there are problems such as squeaking noises during walking, and the wood part needs to have a thickness of at least 6 mm.

[0019]

[Function and effect of the device]

 The effects of the present invention are as follows. 1. By using the notch at the joint, the wood part can be made thinner and the work efficiency does not decrease. 2. The soundproofing performance is improved by thinning the wood part that is the sounding body. 3. Despite the lack of joints, there is almost no step difference after construction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a direct-applied floor material of the present invention.

FIG. 2 is a sectional view of a joint portion.

[Explanation of symbols]

 a cushioning material b cushioning material

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Claims (2)

[Scope of utility model registration request] 1. A cushioning material is attached to the back surface of a wood part made of moku wood, plywood or LVL, and the floor part has a thickness of 6 mm to 9 mm, and the opposite side faces of the wood part are notched, A compression elastic coefficient of 15 kg / cm ^{2 to} 50 kg / cm ² cushioning material is attached in a strip shape along the side surface on the back surface on the side surface where the lower half of the notch protrudes, and the compression elastic coefficient is applied to the remaining portion of the back surface. 5kg / cm ² ~20kg / cm ² of the cushioning material have been attached, and the area that is affixed to the compression modulus 15kg / cm ² ~50kg / cm ² of buffer material, 5% of the total flooring backside - Two
Directly applied flooring material that is 5%. 2. A cushioning material is affixed to the back surface of a wood part made of particle board or fiber board, and the thickness of the wood part is 6 mm.
In the flooring to 15 mm, away fit on the side surface of the opposing wooden section is subjected, fits compression modulus 15 kg / cm ² on the back side surface side of the lower half portion is protruded in-away to 50 kg / cm ² buffer material the Sticked in a strip along the side, on the rest of the back,
Cushioning material of the compression elastic modulus 5kg / cm ² ~20kg / cm ² and is affixed, and compression modulus 15kg / cm ² ~50kg / cm
^The area where the cushioning material of ² is pasted is 5% of the entire back surface of the floor material.
~ 25% direct-applied flooring.